QR Code Generator
The QR Code Generator encodes any text or URL into a high-resolution QR code that can be downloaded as a PNG image. Choose dimensions from 64 to 1024 pixels and one of four error-correction levels (L 7%, M 15%, Q 25%, H 30%). Higher correction allows recovery from obscuring logos or print damage but increases QR density. The generator runs entirely client-side using the open qrcodejs library — your data is never uploaded, making it safe for sensitive links such as Wi-Fi credentials or payment URLs.
How to Use
To use the QR Code Generator, simply open the tool page and interact with the controls in the panel above. The interactive panel handles input and produces instant results entirely in your browser — no signup, no upload. Use the Copy button when you want to transfer the output to your clipboard.
Key Features
- Runs in your browser — No data uploads or server roundtrips.
- Free & no signup — Use without registration or limits.
- Privacy first — Your input never leaves your device.
- Instant results — All processing is synchronous and local.
- Copy & download — Copy output or download to a file when supported.
Common Use Cases
This tool is useful for developers, designers, testers, students, and anyone who needs a quick, browser-based utility without installing software.
Tips & Tricks
Bookmark the tool for quick access during your workflow. Combine it with the related tools listed below for end-to-end productivity.
Frequently Asked Questions
What can I encode in a QR code?
URLs, plain text, phone numbers, SMS messages, Wi-Fi credentials, vCards, contact info, calendar events, and more.
What is error correction L/M/Q/H?
Reed-Solomon error correction lets a damaged QR still scan. L recovers 7% damage, M 15%, Q 25%, H 30%.
Why is my QR not scannable?
Try increasing size to at least 256 px, choose a higher error correction level, or reduce the content length.
Is there a scan limit?
No. Static QR codes do not require any service. They remain scannable forever, as long as the image is preserved.
Can I use the QR codes commercially?
Yes. QR codes are public, unpatented standards. The qrcodejs library is BSD-licensed.